I can answer lots about ballet, specifically the Vaganova syllabus. I'm still training, but both my parents were professional dancers, so most answers will be coming from them, not me. :) They're the experts. Obviously, questions about difficult technique, etc, would be better answered with someone else, but if you're just becoming interested in dancing, or are having problems with basic steps, like pirouettes or plies, then I may be able to help
I've seen ballet since the age of 0, because of my parents, and I am training to become a professional dancer now.